Modification of algebraic multigrid for effective GPGPU-based solution of nonstationary hydrodynamics problems

Abstract

We present modification of algebraic multigrid algorithm for effective GPGPU-based solution of nonstationary hydrodynamics problems. The modification is easy to implement and allows us to reduce number of times when the multigrid setup is performed, thus saving up to 50% of computation time with respect to unmodified algorithm. © 2012 Elsevier B.V.